Total Knee Replacement Clinical Trial
Official title:
Prediction of Leg Length Discrepancy After Unilateral Total Knee Replacement in Varus Deformity
To What degree total knee replacement (TKA) affects leg length discrepancy in patients with varus deformity? Varus deformity, the most commonly encountered deformity in patients undergoing TKA is associated with limb alignment and varying degrees of contractures of medial soft tissue structures, laxity of the lateral soft tissue structures, flexion deformity and medial bone erosion at the knee joint .The challenges in performing TKA in a varus arthritic knee include restoration of limb alignment, balancing the medial and lateral soft tissue tension, equalizing flexion and extension gaps and restoring medial bone loss
Limb length discrepancy (LLD)less than 2cm is usually not noticeable and does not require
treatment. LLD over 2cm is usually noticed by the individual affected leading to self
compensation by walking on the ball of the foot (toe down) or by tilting the pelvis and
curving the spine.Untreated LLD can lead to lower back pain and long leg arthritis of the hip
LLD and its effects on patient function have been discussed in depth in the literature with
respect to hip arthroplasty but there are few studies that have examined the effect on
function of limb length discrepancy following TKA.
Improved surgical techniques and rehabilitation protocols have resulted in excellent knee
function and range of motion following TKA.
The investigators are aiming from the study to improve functional outcome in patients with
knee osteoarthritis undergoing TKA.
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